Pin the video to the latest cut

index.html

@@ -37,7 +37,7 @@ a.card p{margin:0;color:var(--muted);font-size:12.5px}
     <h1>Two poles <i>of one sphere</i></h1>
   </header>
   <p class="lede">The Śrī Yantra turned inside out by circle inversion, then wrapped onto a ball by stereographic projection. On the sphere the inversion is just a flip, and the bindu and infinity are the two poles.</p>
-  <video id="v" controls playsinline preload="metadata" src="https://teahub.xyz/maths/videos/raw/branch/main/yantra-two-poles.mp4"></video>
+  <video id="v" controls playsinline preload="metadata" src="https://teahub.xyz/maths/videos/raw/commit/ec0bb56210abe087f4731777ffba8d1fa6bab3df/yantra-two-poles.mp4"></video>
   <div class="cards">
     <a class="card" href="sphere/">
       <h2>On the sphere</h2>